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NSR database version of May 24, 2024.

Search: Author = B.Nefkens

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2014NE11      Phys.Rev. C 90, 025206 (2014)

B.M.K.Nefkens, for the A2 Collaboration at MAMI

New measurement of the rare decay η → π0γγ with the Crystal Ball/TAPS detectors at the Mainz Microtron

doi: 10.1103/PhysRevC.90.025206
Citations: PlumX Metrics


2013BA28      Phys.Lett. B 723, 71 (2013)

P.A.Bartolome, A.Mushkarenkov, J.Ahrens, J.R.M.Annand, H.-J.Arends, R.Beck, V.Bekrenev, H.Berghauser, A.Braghieri, W.J.Briscoe, S.N.Cherepnya, S.Costanza, P.Drexler, L.V.Filkov, A.Fix, G.Giardina, D.I.Glazier, D.Hamilton, E.Heid, W.Heil, D.Hornidge, D.Howdle, I.Jaegle, O.Jahn, T.Jude, V.L.Kashevarov, I.Keshelashvili, R.Kondratiev, M.Korolija, J.Krimmer, B.Krusche, S.Kruglov, A.Kulbardis, V.Lisin, K.Livingston, J.Mancell, D.G.Middleton, I.J.D.MacGregor, D.M.Manley, J.C.McGeorge, V.Metag, B.M.K.Nefkens, A.Nikolaev, M.Oberle, M.Ostrick, H.Ortega, P.B.Otte, B.Oussena, P.Pedroni, F.Pheron, S.Prakhov, A.Polonski, F.Rigamonti, M.Romaniuk, G.Rosner, T.Rostomyan, S.Schumann, D.Sober, A.Starostin, I.Supek, M.Thiel, A.Thomas, M.Unverzagt, D.Watts, D.Werthmuller

First measurement of the helicity dependence of 3He photoreactions in the Δ(1232) resonance region

NUCLEAR REACTIONS 3He(γ, X), (γ, π0), (γ, π+), (γ, π-), (γ, 2p), E=150-500 MeV; measured reaction products, Eγ, Iγ; deduced total σ, unpolarized σ, polarized σ. Large acceptance Crystal Ball spectrometer.

doi: 10.1016/j.physletb.2013.04.057
Citations: PlumX Metrics


2013TH10      Eur.Phys.J. A 49, 132 (2013)

M.Thiel, V.Metag, P.Aguar-Bartolome, L.K.Akasoy, J.R.M.Annand, H.J.Arends, K.Bantawa, R.Beck, V.Bekrenev, H.Berghauser, A.Braghieri, W.J.Briscoe, J.Brudvik, S.Cherepnya, M.Dieterle, E.J.Downie, P.Drexler, L.V.Filkov, S.Friedrich, D.I.Glazier, R.Gregor, E.Heid, D.Hornidge, O.Jahn, T.C.Jude, V.L.Kashevarov, I.Keshelashvili, R.Kondratiev, M.Korolija, M.Kotulla, B.Krusche, A.Kulbardis, B.Lemmer, V.Lisin, K.Livingston, S.Lugert, I.J.D.MacGregor, Y.Maghrbi, J.Mancell, D.M.Manley, M.Martinez, J.C.McGeorge, E.F.McNicoll, D.G.Middleton, A.Mushkarenkov, M.Nanova, B.M.K.Nefkens, A.Nikolaev, R.W.Novotny, M.Ostrick, P.Pedroni, F.Pheron, A.Polonski, S.N.Prakhov, J.Robinson, G.Rosner, T.Rostomyan, S.Schumann, M.H.Sikora, A.Starostin, I.Supek, A.Thomas, M.Unverzagt, D.P.Watts, J.Weil, D.Werthmuller, I.Zamboni

In-medium modifications of the ω meson near the production threshold

doi: 10.1140/epja/i2013-13132-6
Citations: PlumX Metrics


2012PH03      Phys.Lett. B 709, 21 (2012)

F.Pheron, J.Ahrens, J.R.M.Annand, H.J.Arends, K.Bantawa, P.A.Bartolome, R.Beck, V.Bekrenev, H.Berghauser, B.Boillat, A.Braghieri, D.Branford, W.J.Briscoe, J.Brudvik, S.Cherepnya, B.Demissie, M.Dieterle, E.J.Downie, P.Drexler, D.I.Glazier, E.Heid, L.V.Filkov, D.Hornidge, D.Howdle, O.Jahn, I.Jaegle, T.C.Jude, V.L.Kashevarov, I.Keshelashvili, R.Kondratiev, M.Korolija, M.Kotulla, A.Kulbardis, S.P.Kruglov, B.Krusche, V.Lisin, K.Livingston, I.J.D.Macgregor, Y.Maghrbi, J.Mancell, D.M.Manley, Z.Marinides, M.Martinez, J.C.Mcgeorge, E.Mcnicoll, D.Mekterovic, V.Metag, S.Micanovic, D.G.Middleton, A.Mushkarenkov, B.M.K.Nefkens, A.Nikolaev, R.Novotny, M.Oberle, M.Ostrick, B.Oussena, P.Pedroni, A.Polonski, S.N.Prakhov, J.Robinson, G.Rosner, T.Rostomyan, S.Schumann, M.H.Sikora, D.I.Sober, A.Starostin, I.Supek, M.Thiel, A.Thomas, M.Unverzagt, D.P.Watts, D.Werthmuller, L.Witthauer, F.Zehr

Coherent photoproduction of η-mesons off 3He - search for η-mesic nuclei

NUCLEAR REACTIONS 3He(γ, η), E=597.8-695.1 MeV; measured products, 3He; deduced σ, σ(E), σ(θ). Data were imported from EXFOR entry G0031.

doi: 10.1016/j.physletb.2012.01.075
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0031.


2010PR06      Phys.Rev. C 82, 015201 (2010)

S.Prakhov, P.Vancraeyveld, N.Phaisangittisakul, B.M.K.Nefkens, V.Bekrenev, W.J.Briscoe, L.De Cruz, D.Isenhower, N.Knecht, A.Koulbardis, N.Kozlenko, S.Kruglov, G.Lolos, I.Lopatin, A.Marusic, S.McDonald, Z.Papandreou, D.Peaslee, J.W.Price, J.Ryckebusch, M.Sadler, A.Shafi, A.Starostin, H.M.Staudenmaier, I.I.Strakovsky, I.Supek, T.Van Cauteren

Measurement of Kp radiative capture to γΛ and γΣ0 for pK- between 514 and 750 MeV/c

doi: 10.1103/PhysRevC.82.015201
Citations: PlumX Metrics


2009PR07      Phys.Rev. C 80, 025204 (2009)

S.Prakhov, B.M.K.Nefkens, V.Bekrenev, W.J.Briscoe, N.Knecht, A.Koulbardis, N.Kozlenko, S.Kruglov, G.Lolos, I.Lopatin, A.Marusic, S.McDonald, D.Peaslee, N.Phaisangittisakul, J.W.Price, A.Shafi, A.Starostin, H.M.Staudenmaier, I.I.Strakovsky, I.Supek

Measurement of π0Λ, K(bar)0n, and π0Σ0 production in K-p interactions for pK- between 514 and 750 MeV/c

doi: 10.1103/PhysRevC.80.025204
Citations: PlumX Metrics


2008PR07      Phys.Rev. C 78, 015206 (2008)

S.Prakhov, B.M.K.Nefkens, C.E.Allgower, V.Bekrenev, W.J.Briscoe, J.R.Comfort, K.Craig, D.Grosnick, D.Isenhower, N.Knecht, D.Koetke, A.Koulbardis, N.Kozlenko, S.Kruglov, G.Lolos, I.Lopatin, D.M.Manley, R.Manweiler, A.Marusic, S.McDonald, J.Olmsted, Z.Papandreou, D.Peaslee, N.Phaisangittisakul, J.W.Price, A.F.Ramirez, M.Sadler, A.Shafi, H.Spinka, T.D.S.Stanislaus, A.Starostin, H.M.Staudenmaier, I.Supek, for the Crystal Ball Collaboration at the AGS

Measurement of the invariant-mass spectrum for the two photons from the η → π0γγ decay

doi: 10.1103/PhysRevC.78.015206
Citations: PlumX Metrics


2005NE13      Phys.Rev. C 72, 035212 (2005)

B.M.K.Nefkens, S.Prakhov, C.E.Allgower, V.Bekrenev, W.J.Briscoe, M.Clajus, J.R.Comfort, K.Craig, D.Grosnick, D.Isenhower, N.Knecht, D.Koetke, A.Koulbardis, N.Kozlenko, S.Kruglov, G.Lolos, I.Lopatin, D.M.Manley, R.Manweiler, A.Marusic, S.McDonald, J.Olmsted, Z.Papandreou, D.Peaslee, N.Phaisangittisakul, J.W.Price, A.F.Ramirez, M.Sadler, A.Shafi, H.Spinka, T.D.S.Stanislaus, A.Starostin, H.M.Staudenmaier, I.Supek, W.B.Tippens, and the Crystal Ball Collaboration

Search for the forbidden decays η → 3γ and c → π0γ and the rare decay η → π0π0γγ

doi: 10.1103/PhysRevC.72.035212
Citations: PlumX Metrics


2005PR12      Nucl.Phys. A754, 272c (2005)

J.W.Price, J.Ducote, J.Goetz, B.M.K.Nefkens, for the CLAS Collaboration

Photoproduction of the doubly-strange Ξ hyperons

NUCLEAR REACTIONS 1H(γ, 2K+X), E=3.2-5.4 GeV; measured cascade hyperon production associated missing mass spectra, yields, angular distributions.

doi: 10.1016/j.nuclphysa.2005.02.075
Citations: PlumX Metrics


2004PE12      Phys.Rev. C 69, 064612 (2004)

R.J.Peterson, C.E.Allgower, V.Bekrenev, W.J.Briscoe, J.R.Comfort, K.Craig, D.Grosnick, D.Isenhower, N.Knecht, D.Koetke, A.A.Kulbardis, G.Lolos, V.Lopatin, D.M.Manley, R.Manweiler, A.Marusic, S.McDonald, B.M.K.Nefkens, J.Olmsted, Z.Papandreou, D.C.Peaslee, N.Phaisangittisakul, J.Price, D.E.Prull, A.F.Ramirez, M.Sadler, A.Shafi, H.Spinka, T.D.S.Stanislaus, A.Starostin, H.M.Staudenmaier, I.Strakovsky, I.Supek, and the Crystal Ball Collaboration

y scaling in quasifree pion-single-charge exchange

NUCLEAR REACTIONS 2H, C, Al, Cu(π-, π0), E at 750 MeV/c; measured σ(E, θ); deduced spin and nonspin isovector responses, y-scaling features.

doi: 10.1103/PhysRevC.69.064612
Citations: PlumX Metrics


2004PR04      Phys.Rev. C 69, 042202 (2004)

S.Prakhov, B.M.K.Nefkens, C.E.Allgower, V.Bekrenev, W.J.Briscoe, M.Clajus, J.R.Comfort, K.Craig, D.Grosnick, D.Isenhower, N.Knecht, D.Koetke, A.Koulbardis, N.Kozlenko, S.Kruglov, G.Lolos, I.Lopatin, D.M.Manley, R.Manweiler, A.Marusic, S.McDonald, J.Olmsted, Z.Papandreou, D.Peaslee, N.Phaisangittisakul, J.W.Price, A.F.Ramirez, M.Sadler, A.Shafi, H.Spinka, T.D.S.Stanislaus, A.Starostin, H.M.Staudenmaier, I.Supek, W.B.Tippens, and the Crystal Ball Collaboration

Reaction K- p → π0π0 Λ from pK=514 to 750 MeV/c

NUCLEAR REACTIONS 1H(K-, 2π0X), E at 514-750 MeV/c; measured hyperon production associated invariant mass spectra, total σ, σ(θ); deduced reaction mechanism features.

doi: 10.1103/PhysRevC.69.042202
Citations: PlumX Metrics


2004PR05      Phys.Rev. C 69, 045202 (2004)

S.Prakhov, B.M.K.Nefkens, C.E.Allgower, V.Bekrenev, W.J.Briscoe, M.Clajus, J.R.Comfort, K.Craig, D.Grosnick, D.Isenhower, N.Knecht, D.Koetke, A.Koulbardis, N.Kozlenko, S.Kruglov, G.Lolos, I.Lopatin, D.M.Manley, R.Manweiler, A.Marusic, S.McDonald, J.Olmsted, Z.Papandreou, D.Peaslee, N.Phaisangittisakul, J.W.Price, A.F.Ramirez, M.Sadler, A.Shafi, H.Spinka, T.D.S.Stanislaus, A.Starostin, H.M.Staudenmaier, I.Supek, W.B.Tippens and the Crystal Ball Collaboration

Measurement of π-p → π0π0n from threshold to pπ- = 750 MeV/c

NUCLEAR REACTIONS 1H(π-, 2π0), E at 270-750 MeV/c; measured σ, σ(θ), invariant mass spectra; deduced resonance effects.

doi: 10.1103/PhysRevC.69.045202
Citations: PlumX Metrics


2004PR08      Phys.Rev. C 70, 034605 (2004)

S.Prakhov, B.M.K.Nefkens, C.E.Allgower, V.Bekrenev, W.J.Briscoe, M.Clajus, J.R.Comfort, K.Craig, D.Grosnick, D.Isenhower, N.Knecht, D.Koetke, A.Koulbardis, N.Kozlenko, S.Kruglov, G.Lolos, I.Lopatin, D.M.Manley, R.Manweiler, A.Marusic, S.McDonald, J.Olmsted, Z.Papandreou, D.Peaslee, N.Phaisangittisakul, J.W.Price, A.F.Ramirez, M.Sadler, A.Shafi, H.Spinka, T.D.S.Stanislaus, A.Starostin, H.M.Staudenmaier, I.Supek, W.B.Tippens, and the Crystal Ball Collaboration

K-p → π0π0Σ0 at pK- = 514-750 MeV/c and comparison with other π0π0 production

NUCLEAR REACTIONS 1H(K-, 2π0X), E at 514-750 MeV/c; measured Σ0 hyperon production associated invariant mass spectra, total σ, σ(θ); deduced reaction mechanism features. Comparison with other dipion reaction data.

doi: 10.1103/PhysRevC.70.034605
Citations: PlumX Metrics


2004SA19      Phys.Rev. C 69, 055206 (2004)

M.E.Sadler, A.Kulbardis, V.Abaev, C.Allgower, A.Barker, V.Bekrenev, C.Bircher, W.J.Briscoe, R.Cadman, C.Carter, M.Clajus, J.R.Comfort, K.Craig, M.Daugherity, B.Draper, D.Grosnic, S.Hayden, J.Huddleston, D.Isenhower, M.Jerkins, M.Joy, N.Knecht, D.D.Koetke, N.Kozlenko, S.Kruglov, T.Kycia, G.Lolos, I.Lopatin, D.M.Manley, R.Manweiler, A.Marusic, S.McDonald, B.M.K.Nefkens, J.Olmsted, Z.Papandreou, D.Peaslee, J.Peterson, N.Phaisangittisakul, S.N.Prakhov, J.W.Price, A.Ramirez, C.Robinson, A.Shafi, H.Spinka, S.Stanislaus, A.Starostin, H.M.Staudenmaier, I.Strakovsky, I.Supek, W.B.Tippens, S.Watson

Differential cross section of the charge-exchange reaction π-p → π0n in the momentum range from 148 to 323 MeV/c

NUCLEAR REACTIONS 1H(π-, π0), E at 148-323 MeV/c; measured σ(θ); deduced total σ.

doi: 10.1103/PhysRevC.69.055206
Citations: PlumX Metrics


2003KO09      Yad.Fiz. 66, 112 (2003); Phys.Atomic Nuclei 66, 110 (2003)

N.G.Kozlenko, V.V.Abaev, V.S.Bekrenev, S.P.Kruglov, A.A.Koulbardis, I.V.Lopatin, A.B.Starostin, B.Draper, S.Hayden, J.Huddleston, D.Isenhower, C.Robinson, M.Sadler, C.Allgower, R.Cadman, H.Spinka, J.Comfort, K.Craig, A.Ramirez, T.Kycia, M.Clajus, A.Marusic, S.McDonald, B.M.K.Nefkens, N.Phaisangittisakul, S.Prakhov, J.W.Price, W.B.Tippens, J.Peterson, W.J.Briscoe, A.Shafi, I.I.Strakovsky, H.Staudenmaier, D.M.Manley, J.Olmsted, D.Peaslee, N.Knecht, G.Lolos, Z.Papandreou, I.Supek, I.Slaus, A.Gibson, D.Grosnic, D.Koetke, R.Manweiler, S.Stanislaus

Measurement of the Total and Differential Cross Sections for the Reaction π-p → ηn with the Crystal Ball Detector

NUCLEAR REACTIONS 1H(π-, nX), E at 685-720 MeV/c; measured η production associated invariant mass spectra, total σ, σ(θ). Comparison with previous results, model predictions.

doi: 10.1134/1.1540664
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2003KU32      Nucl.Phys. A721, 563c (2003)

S.Kullander, C.Bargholtz, M.Bashkanov, D.Bogoslawsky, H.Calen, F.Cappellaro, H.Clement, L.Demirors, E.Dorochkevitch, C.Ekstrom, K.Fransson, C.J.Friden, M.Gornov, J.Greiff, L.Gustafsson, B.Hoistad, G.Ivanov, M.Jacewicz, E.Jiganov, A.Johansson, T.Johansson, S.Keleta, N.Kimura, I.Koch, A.Kupsc, A.Kuznetsov, K.Lindberg, P.Marciniewski, B.Morosov, A.Nawrot, B.Nefkens, W.Oelert, C.Pauly, Y.Petukhov, A.Povtorejko, D.Reistad, R.Ruber, S.Sandukovsky, W.Scobel, R.Shafigulin, B.Shwartz, T.Skorodko, V.Sopov, J.Stepaniak, V.Tchernyshev, P.-E.Tegner, V.Tikhomirov, P.Thorngren Engblom, A.Turowiecki, G.Wagner, U.Wiedner, Z.Wilhelmi, A.Yamamoto, H.Yamaoka, J.Zabierowski, J.Zlomanczuk

First results from the CELSIUS/WASA facility

NUCLEAR REACTIONS 1H(p, pX), E=1360 MeV; measured neutral pion and η meson production associated missing mass spectra.

doi: 10.1016/S0375-9474(03)01124-2
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2003ST28      Prog.Theor.Phys.(Kyoto), Suppl. 149, 94 (2003)

H.M.Staudenmaier, B.M.K.Nefkens, A.Starostin, for the Crystal Ball Collaboration

Crystal Ball Results - π--Interactions on Hydrogen and Nuclear Targets

NUCLEAR REACTIONS H, C, Al, Cu(π-, 2π0), E at 750 MeV/c; measured missing mass and invariant mass spectra; deduced resonance and medium effects.

doi: 10.1143/PTPS.149.94
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2002BR49      Phys.Rev. C 66, 054006 (2002)

W.J.Briscoe, B.L.Berman, R.W.C.Carter, K.S.Dhuga, S.K.Matthews, N.-J.Nicholas, S.J.Greene, B.M.K.Nefkens, J.W.Price, L.D.Isenhower, M.E.Sadler, I.Slaus, I.Supek

Elastic scattering of charged pions from 3H and 3He

NUCLEAR REACTIONS 3H, 3He(π+, π+), (π-, π-), E=142, 180, 220, 256 MeV; measured σ(θ) ratios; deduced reaction mechanism features.

doi: 10.1103/PhysRevC.66.054006
Citations: PlumX Metrics


2002ST33      Phys.Rev. C 66, 055205 (2002)

A.Starostin, H.M.Staudenmaier, V.Bekrenev, W.J.Briscoe, A.Koulbardis, N.Kozlenko, S.Kruglov, I.Lopatin, A.Marusic, S.McDonald, B.M.K.Nefkens, N.Phaisangittisakul, S.Prakhov, J.W.Price, A.Shafi, I.Slaus, I.Supek

In-medium production of 2π0, η and π0 by π- at 750 MeV/c

NUCLEAR REACTIONS 1H, C, Al, Cu(π-, X), E at 750 MeV/c; measured π0, 2π0, and η production invariant mass and angular distributions; deduced role of nuclear absorption.

doi: 10.1103/PhysRevC.66.055205
Citations: PlumX Metrics


2001TI01      Phys.Rev. D63, 052001 (2001)

W.B.Tippens, V.Abaev, M.Batinic, V.Bekrenev, W.J.Briscoe, R.E.Chrien, M.Clajus, D.Isenhower, N.Kozlenko, S.Kruglov, M.J.Leitch, A.Marusic, T.Moriwaki, T.Morrison, B.M.K.Nefkens, J.C.Peng, P.H.Pile, J.W.Price, D.Rigsby, M.E.Sadler, R.Sawafta, I.Slaus, H.Seyfarth, A.Starostin, I.Supek, R.J.Sutter, A.Svarc, D.B.White

Measurement of Charge Symmetry Breaking by the Comparison of π+d → ppη with π-d → nnη

NUCLEAR REACTIONS 2H(π+, 2pX), (π-, 2nX), E at 655-752 MeV/c; measured η meson production associated invariant mass spectra, σ; deduced charge symmetry breaking features.

doi: 10.1103/PhysRevD.63.052001
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1998BA39      Phys.Scr. 58, 15 (1998)

M.Batinic, I.Dadic, I.Slaus, A.Svarc, B.M.K.Nefkens, T.-S.H.Lee

The New Determination of the ηN S-Wave Scattering Length from a Three-Channel, Multi-Resonance Amplitude Analysis


1996AB01      Phys.Rev. C53, 385 (1996)

V.V.Abaev, B.M.K.Nefkens

S-Wave Resonance Coupled-Channel Approach to the Reactions π- + p → η + n and K- + p → η + Λ, and a Determination of the ηn and ηΛ Scattering Lengths

NUCLEAR REACTIONS 1H(π-, X), E at ≈ 700-900 MeV/c; 1H(K-, X), E at ≈ 725-825 MeV/c; calculated total σ vs momentum; deduced (η)N-, (η)(Λ)-scattering length. Coupled-channels approach.

doi: 10.1103/PhysRevC.53.385
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1996DH01      Phys.Rev. C54, 2823 (1996)

K.S.Dhuga, B.L.Berman, W.J.Briscoe, R.W.Caress, S.K.Matthews, D.B.Barlow, B.M.K.Nefkens, C.Pillai, J.W.Price, S.J.Greene, I.Slaus, I.Supek

Investigation of Nuclear Charge Symmetry by Pion Elastic Scattering from 3H and 3He

NUCLEAR REACTIONS 3H, 3He(π+, π+), (π-, π-), E=180-295 MeV; measured σ(E, θ); deduced role of charge symmetry breaking in the pion-nucleus system.

doi: 10.1103/PhysRevC.54.2823
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1996MA15      Phys.Rev. C53, 2068 (1996)

B.Mayer, A.Boudard, B.Fabbro, M.Garcon, C.Kerboul, J.Poitou, F.Wellers, W.W.Jacobs, J.Saudinos, E.Tomasi-Gustafsson, J.P.Mouly, R.S.Kessler, B.M.K.Nefkens, B.Tippens, A.van der Schaaf, R.Abegg, W.T.H.van Oers, W.Briscoe, A.Petrov, A.Moalem

Reaction pd → 3Heη and pd → 3Heπ+π- Near the η Threshold

NUCLEAR REACTIONS 2H(p, X), E=831.6-902.4 MeV; measured σ(E, θ) for η production; deduced η3He-scattering length. Tagging facility.

doi: 10.1103/PhysRevC.53.2068
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1996NI06      Phys.Rev. C54, 1732 (1996)

V.N.Nikulin, A.Boudard, M.Clajus, B.Fabbro, M.Garcon, R.S.Kessler, L.K.Lytkin, B.Mayer, B.M.K.Nefkens, F.Plouin, J.Poitou, E.Tomasi-Gustafsson, W.T.H.van Oers, D.White, C.Wilkin

The d(pol)p → 3Heπ0 Reaction Near Threshold

NUCLEAR REACTIONS 1H(polarized d, π0), E=397.3-429.7 MeV; measured σ(θ) vs E, iT11(θ), T20(θ), T22(θ); deduced amplitudes.

doi: 10.1103/PhysRevC.54.1732
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1995BA33      Phys.Rev. C51, 2310 (1995); Erratum Phys.Rev. C57, 1004 (1998)

M.Batinic, I.Slaus, A.Svarc, B.M.K.Nefkens

πN → (Eta)N and (Eta)N → (Eta)N Partial-Wave T Matrices in a Coupled, Three-Channel Model

NUCLEAR REACTIONS 1H(π-, X), E ≤ 2500 MeV; analyzed σ(E), σ(θ) along with πN-, (eta)N-elastic scattering data. Three-coupled-channels model.

doi: 10.1103/PhysRevC.51.2310
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1995BE04      Phys.Rev. C51, 1882 (1995)

B.L.Berman, G.C.Anderson, W.J.Briscoe, A.Mokhtari, A.M.Petrov, M.E.Sadler, D.B.Barlow, B.M.K.Nefkens, C.Pillai

Inelastic Pion Scattering from 3H and 3He

NUCLEAR REACTIONS 3H, 3He(π+, π+'), (π-, π-'), E=142, 180, 220 MeV; measured σ(θ(π), E(π)), ratios; deduced no violation of charge symmetry in inelastic channel. Comparison with electron, elastic pion scattering.

doi: 10.1103/PhysRevC.51.1882
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1995MA32      Phys.Rev. C51, 2534 (1995)

S.K.Matthews, W.J.Briscoe, C.Bennhold, B.L.Berman, R.W.Caress, K.S.Dhuga, S.N.Dragic, S.S.Kamalov, N.J.Nicholas, M.F.Taragin, L.Tiator, S.J.Greene, D.B.Barlow, B.M.K.Nefkens, C.Pillai, J.W.Price, L.D.Isenhower, M.E.Sadler, I.Slaus, I.Supek

Elastic Scattering of Pions from 3H and 3He into the Backward Hemisphere

NUCLEAR REACTIONS 3He, 3H(π+, π+), E=142-256 MeV; measured σ(θ).

doi: 10.1103/PhysRevC.51.2534
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1995PR02      Phys.Rev. C51, R2283 (1995)

J.W.Price, G.Anton, J.Arends, W.Beulertz, A.Bock, M.Breuer, K.Buchler, M.Clajus, P.Detemple, J.Hey, D.Kramer, W.Meyer, B.M.K.Nefkens, G.Noldeke, W.Schneider, B.Zucht

(Eta) Meson Photoproduction on Hydrogen Near Threshold

NUCLEAR REACTIONS 1H(γ, X), E=707.2-717.7 MeV; measured eta production σ(E); deduced S-wave production.

doi: 10.1103/PhysRevC.51.R2283
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1993BR03      Nucl.Phys. A553, 585c (1993)

W.J.Briscoe, D.B.Barlow, B.L.Berman, R.W.Caress, K.S.Dhuga, S.N.Dragic, S.J.Greene, L.D.Isenhower, D.Knowles, D.Macek, S.K.Matthews, A.Mokhtari, B.M.K.Nefkens, N.J.Nicholas, C.Pillai, J.W.Price, M.E.Sadler, I.Slaus, I.Supek, M.F.Taragin

π± Elastic and Inelastic Scattering from 3H and 3He

NUCLEAR REACTIONS 3H, 3He(π+, π+), (π+, π+'), (π-, π-), (π-, π-'), E=142-256 MeV; measured σ(θ). 3H, 3He deduced matter form factors differences.

doi: 10.1016/0375-9474(93)90663-I
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1993SU21      Phys.Rev. D47, 1762 (1993)

I.Supek, D.B.Barlow, W.J.Briscoe, J.F.Davis, G.J.Kim, D.W.Lane, A.Mokhtari, B.M.K.Nefkens, C.Pillai, M.E.Sadler, C.J.Seftor, M.F.Taragin, J.A.Wightman

Spin-Rotation Parameters A and R for π+p and π-p Elastic Scattering from 427 to 657 MeV/c

NUCLEAR REACTIONS 1H(π+, π+), (π-, π-), E at 427-657 MeV/c; measured spin rotation parameter, πp-coin. Polarized target.

doi: 10.1103/PhysRevD.47.1762
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1992BA03      Phys.Rev. C45, 293 (1992)

D.B.Barlow, B.M.K.Nefkens, C.Pillai, J.W.Price, I.Slaus, M.J.Wang, J.A.Wightman, K.W.Jones, M.J.Leitch, C.S.Mishra, C.L.Morris, J.-C.Peng, P.K.Teng, J.M.Tinsley

3He and 4He Production by 800 MeV Protons from 12C, Ti, and Pb at Forward Angles

NUCLEAR REACTIONS 12C, Ti, Pb(p, X)3He/4He, E=800 MeV; measured σ(θ) vs momentum for 4,3He; deduced 3,4He production σ ratio, reaction mechanism.

doi: 10.1103/PhysRevC.45.293
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1991KI03      Phys.Rev. D43, 687 (1991)

G.J.Kim, J.Engelage, B.M.K.Nefkens, H.J.Ziock, J.Arends, W.J.Briscoe, M.E.Sadler

Measurement of the Left-Right Asymmetry in π-p → γn from 301 to 625 MeV/c at Backward Angles

NUCLEAR REACTIONS 1H(π-, γ), E at 301-625 MeV/c; measured γn-coin, asymmetry. Polarized target. Model comparison.

doi: 10.1103/PhysRevD.43.687
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1991PI03      Phys.Rev. C43, 1838 (1991)

C.Pillai, D.B.Barlow, B.L.Berman, W.J.Briscoe, A.Mokhtari, B.M.K.Nefkens, M.E.Sadler

Angle and Energy Dependence of the Superratio for π+ and π- ELastic Scattering from 3H and 3He: Evidence for charge-symmetry violation

NUCLEAR REACTIONS 3H, 3He(π+, π+), (π-, π-), E=142-220 MeV; measured missing mass spectra, σ(ratio), σ(θ); deduced charge symmetry violation evidence. High pressure gas targets. Models comparison.

doi: 10.1103/PhysRevC.43.1838
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1990KI02      Phys.Rev. D41, 733 (1990)

G.J.Kim, J.Arends, W.J.Briscoe, J.Engelage, B.M.K.Nefkens, M.E.Sadler, M.Taragin, H.J.Ziock

Analyzing Power for π-p Charge Exchange in the Backward Hemisphere from 301 to 625 MeV/c and a Test of πN Partial-Wave Analyses

NUCLEAR REACTIONS 1H(π-, π0), E at 301-625 MeV/c; measured anayzing power, nγ-coin. Model analysis. Vector polarized target.

doi: 10.1103/PhysRevD.41.733
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1990NE02      Phys.Rev. C41, 2770 (1990)

B.M.K.Nefkens, W.J.Briscoe, A.D.Eichon, D.H.Fitzgerald, A.Mokhtari, J.A.Wightman, M.E.Sadler

Superratio and the Simple Ratios of π+ and π- Elastic Scattering on 3H and 3He at 180 MeV to Investigate Charge Symmetry

NUCLEAR REACTIONS 3H, 3He(π+, π+), (π-, π-), E=180, 143 MeV; measured σ(θ), ratios. 3H, 3He deduced neutron, proton matter form factor near equality.

doi: 10.1103/PhysRevC.41.2770
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1989BA08      Phys.Rev.Lett. 62, 1009 (1989)

D.B.Barlow, R.S.Kessler, G.J.Kim, B.M.K.Nefkens, C.Pillai, J.W.Price, J.A.Wightman, S.Hall, D.W.Lane, S.R.Loe, L.K.Morton, M.E.Sadler, S.D.Adrian, W.J.Briscoe, L.H.Kramer, A.Mokhtari, A.M.Petrov, C.J.Seftor, M.F.Taragin, J.F.Davis, I.Supek

Measurement of the Spin-Rotation Parameters A and R for π+p → π+p and π-p → π-p Scattering from 471 to 625 MeV/c

NUCLEAR REACTIONS 1H(π+, π+), (π-, π-), E at 471-625 MeV/c; measured spin rotation parameters. Frozen spin polarized target.

doi: 10.1103/PhysRevLett.62.1009
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1989KI04      Phys.Lett. 219B, 62 (1989)

G.J.Kim, S.D.Adrian, J.Arends, W.J.Briscoe, J.Engelage, B.M.K.Nefkens, M.E.Sadler, C.J.Seftor, D.I.Sober, M.Taragin, H.J.Ziock

Test of πN Partial Wave Analyses at the Onset of the Roper Resonance

NUCLEAR REACTIONS 1H(π-, π0), E at 301-625 MeV/c; measured analyzing power vs θ. Transversely polarized target.

doi: 10.1016/0370-2693(89)90838-1
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1989KI16      Phys.Rev. D40, 244 (1989)

G.J.Kim, J.Arends, W.J.Briscoe, J.Engelage, B.M.K.Nefkens, M.E.Sadler, H.J.Ziock

Differential Cross Section for π-p → γn from 427 to 625 MeV/c

NUCLEAR REACTIONS 1H(π-, γ), E at 427-625 MeV/c; measured σ(θ). Coincidence technique.

doi: 10.1103/PhysRevD.40.244
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1989SE05      Phys.Rev. D39, 2457 (1989)

C.J.Seftor, S.D.Adrian, W.J.Briscoe, A.Mokhtari, M.F.Taragin, M.E.Sadler, D.B.Barlow, B.M.K.Nefkens, C.Pillai

Recoil-Proton Polarization in πp Elastic Scattering at 547 and 625 MeV/c

NUCLEAR REACTIONS 1H(π+, π+), (π-, π-), E at 547, 625 MeV/c; measured recoil proton polarization.

doi: 10.1103/PhysRevD.39.2457
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1988BA58      Nucl.Instrum.Methods Phys.Res. A271, 471 (1988)

D.B.Barlow, B.M.K.Nefkens, C.T.Pillai, K.W.Jones

Production of High Momentum Negative Pions by 800 MeV Protons at 0° to 20°

NUCLEAR REACTIONS 9Be, C(p, π-), E=800 MeV; measured pion yield vs momentum.

doi: 10.1016/0168-9002(88)90307-5
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1988PI09      Phys.Lett. 207B, 389 (1988)

C.Pillai, D.B.Barlow, B.L.Berman, W.J.Briscoe, A.Mokhtari, B.M.K.Nefkens, A.M.Petrov, M.E.Sadler

A Study of Charge-Symmetry Violation in π+ and π- Elastic Scattering from 3H and 3He

NUCLEAR REACTIONS 3H, 3He(π+, π+), (π-, π-), E=142, 180, 220 MeV; measured σ(θ), ratios; deduced charge symmetry violation mechanism.

doi: 10.1016/0370-2693(88)90670-3
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1988WI21      Phys.Rev. D38, 3365 (1988)

J.A.Wightman, A.D.Eichon, G.J.Kim, A.Mokhtari, B.M.K.Nefkens, W.J.Briscoe, D.H.Fitzgerald, M.E.Sadler

π-p Charge-Exchange Analyzing Power from 547 to 687 MeV/c

NUCLEAR REACTIONS 1H(π-, π0), E at 547-687 MeV/c; measured analyzing power. Transversely polarized target.

doi: 10.1103/PhysRevD.38.3365
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1987MO01      Phys.Rev. D35, 810 (1987)

A.Mokhtari, A.D.Eichon, G.J.Kim, B.M.K.Nefkens, J.A.Wightman, D.H.Fitzgerald, W.J.Briscoe, M.E.Sadler

Analyzing Power and Transversity Cross Sections for π+p and π-p Elastic Scattering from 471 to 687 MeV/c

NUCLEAR REACTIONS 1H(π+, π+), (π-, π-), E at 471-687 MeV/c; measured analyzing power; deduced transversity σ, isospin triangle inequalities bounds. Other data input.

doi: 10.1103/PhysRevD.35.810
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1987SA16      Phys.Rev. D35, 2718 (1987)

M.A.Sadler, W.J.Briscoe, D.H.Fitzgerald, B.M.K.Nefkens, C.J.Seftor

Differential Cross Sections for π+p and π-p Elastic Scattering from 378 to 687 MeV/c

NUCLEAR REACTIONS 1H(π+, π+), (π-, π-), E at 378-687 MeV/c; measured σ(θ); deduced σ. Liquid target, scintillation counter hodoscopes.

doi: 10.1103/PhysRevD.35.2718
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1986MO01      Phys.Rev. D33, 296 (1986)

A.Mokhtari, W.J.Briscoe, A.D.Eichon, D.H.Fitzgerald, G.J.Kim, B.M.K.Nefkens, J.A.Wightman, M.E.Sadler

Analyzing Power for π-p Elastic Scattering in the Energy Region of the Roper Resonance

NUCLEAR REACTIONS 1H(π-, π-), E at 471-687 MeV/c; measured analyzing power vs θ. High precision, polarized target.

doi: 10.1103/PhysRevD.33.296
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1985BR23      Phys.Rev. C32, 1956 (1985)

W.J.Briscoe, B.H.Silverman, D.H.Fitzgerald, B.M.K.Nefkens, A.Boudard, G.Bruge, L.Farvacque, C.Glashausser

Differential Cross Sections for p + d → γ + 3He at Intermediate Energies

NUCLEAR REACTIONS 1H(d, γ), E=300-500 MeV; measured σ(θ); deduced time reversal invariance validity.

doi: 10.1103/PhysRevC.32.1956
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1985MO15      Phys.Rev.Lett. 55, 359 (1985)

A.Mokhtari, W.J.Briscoe, A.D.Eichon, D.H.Fitzgerald, G.J.Kim, B.M.K.Nefkens, J.A.Wightman, S.D.Adrian, M.E.Sadler, T.Walker

Analyzing Powers in π+p Elastic Scattering at Intermediate Energies

NUCLEAR REACTIONS 1H(π+, π+), E=471, 547, 625, 687 MeV/c; measured analyzing power vs θ; deduced no new Δ resonances. Transversely polarized target.

doi: 10.1103/PhysRevLett.55.359
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1985SI21      Nucl.Phys. A444, 621 (1985)

B.H.Silverman, W.J.Briscoe, D.H.Fitzgerald, B.M.K.Nefkens, A.Boudard, G.Bruge, P.Couvert, C.Glashausser

Cross-Section Measurements of p + d → 3He + π0 and p + d → 3H + π+ at Intermediate Energies

NUCLEAR REACTIONS 2H(p, π0), E=300-500 MeV; 2H(p, π+), E=500 MeV; 1H(p, π+), E=500 MeV; measured σ(θ); C(p, 3He), E=300-500 MeV; measured σ(θ) vs proton momentum.

doi: 10.1016/0375-9474(85)90109-5
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1984NE01      Phys.Rev.Lett. 52, 735 (1984)

B.M.K.Nefkens, W.J.Briscoe, A.D.Eichon, D.H.Fitzgerald, J.A.Holt, A.A.Mokhtari, J.A.Wightman, M.E.Sadler, R.L.Boudrie, C.L.Morris

Test of Charge Symmetry in π+ and π- Elastic Scattering on Tritium and 3He

NUCLEAR REACTIONS 3He(π+, π+), (π-, π-), E=180 MeV; measured σ(θ); deduced σ(π-)/σ(π+), evidence for possible charge symmetry violation.

doi: 10.1103/PhysRevLett.52.735
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1984SI01      Phys.Rev. C29, 35 (1984)

B.H.Silverman, A.Boudard, W.J.Briscoe, G.Bruge, P.Couvert, L.Farvacque, D.H.Fitzgerald, C.Glashausser, J.-C.Lugol, B.M.K.Nefkens

d + d → 4He + γ Cross Section Measurement at 376 MeV

NUCLEAR REACTIONS 2H(d, γ), E=376 MeV; measured σ(θ); deduced time reversal invariance in isoscalar electromagnetic hadronic interactions.

doi: 10.1103/PhysRevC.29.35
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1983SO10      Phys.Rev. C28, 2234 (1983)

D.I.Sober, H.Crannell, B.M.K.Nefkens, W.J.Briscoe, D.H.Fitzgerald, R.Goloskie, W.W.Sapp, Jr.

Two-Body Photodisintegration of 3He between 150 and 350 MeV

NUCLEAR REACTIONS 3He(γ, d), E=150-350 MeV; measured σ(θ); deduced detailed balance, time reversal invariance validity.

doi: 10.1103/PhysRevC.28.2234
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1982AS01      Phys.Lett. 108B, 91 (1982)

E.Aslanides, A.M.Bergdolt, O.Bing, P.Fassnacht, F.Hibou, N.Willis, P.Kitching, Y.Le Bornec, B.Tatischeff, K.Baba, A.Boudard, G.Bruge, P.Couvert, B.Nefkens

Coherent Pion Production Induced by 300 MeV and 600 MeV Deuterons

NUCLEAR REACTIONS 6Li, 9Be, 10B(d, π-), E=300, 600 MeV; measured σ(θ) vs pion momentum. 8B levels deduced production σ(θ). Scintillation hodoscopes, Cerenkov counters.

doi: 10.1016/0370-2693(82)91149-2
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1982BR12      Phys.Rev.Lett. 49, 187 (1982)

W.J.Briscoe, D.H.Fitzgerald, B.M.K.Nefkens, H.Crannell, D.I.Sober, R.Goloskie, W.W.Sapp, Jr.

Two-Body Photodisintegration of 3He between 150 and 350 MeV

NUCLEAR REACTIONS 3He(γ, d), E=150-350 MeV bremsstrahlung; measured σ(θ) vs E.

doi: 10.1103/PhysRevLett.49.187
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1982SA30      Phys.Lett. 119B, 69 (1982)

M.E.Sadler, C.J.Seftor, F.O.Borcherding, W.J.Briscoe, D.H.Fitzgerald, P.F.Glodis, R.P.Haddock, B.M.K.Nefkens

Elastic π±p Scattering from 378 to 687 MeV/c

NUCLEAR REACTIONS 1H(π+, π+), (π-, π-), E at 378, 687 MeV/c; measured σ(θ). Cylindrical liquid hydrogen target, pion, recoil proton coincidence measurement.

doi: 10.1016/0370-2693(82)90245-3
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1982TA17      Nucl.Phys. A386, 552 (1982)

J.P.Tabet, B.Bonin, A.Boudard, A.Chaumeaux, P.Couvert, J.L.Escudie, L.Farvacque, M.Garcon, D.Legrand, J.C.Lugol, B.Nefkens, J.Saudinos, Y.Terrien, Y.Abgrall, J.Labarsouque

Elastic and Inelastic Scattering of 1 Gev Protons on the 144,150,152Sm Isotopes

NUCLEAR REACTIONS 144,150,152Sm(p, p), (p, p'), E=1.04 GeV; measured σ(θ). 144Sm levels deduced transition strengths. Microscopic analysis. Enriched targets.

doi: 10.1016/0375-9474(82)90036-7
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1980GL01      Phys.Rev.Lett. 44, 234 (1980)

P.Glodis, H.Brandle, R.Haddock, I.Kostoulas, N.Matz, B.Nefkens, W.Plumlee, O.Sander, J.Pratt, R.Sherman, F.Shively, J.Spencer

Pion Charge Exchange on Tritium

NUCLEAR REACTIONS 3H(π+, π+), (π+, π0), E at 232, 252 MeV/c; measured σ(θ). First-order optical model. Glauber model, multiple scattering theories.

doi: 10.1103/PhysRevLett.44.234
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1980NE03      Phys.Rev.Lett. 45, 168 (1980)

B.M.K.Nefkens, T.S.Bauer, K.Baba, A.Boudard, W.J.Briscoe, G.Bruge, J.L.Faure, J.Gosset, A.Hegerath, J.C.Lugol, B.H.Silverman, Y.Terrien

Measurement of p + d → 3He + γ and Comparison with the Inverse Reaction

NUCLEAR REACTIONS 2H(p, γ), E=450, 550 MeV; measured 3Heγ-coin, σ(θγ); deduced inverse reaction σ.

doi: 10.1103/PhysRevLett.45.168
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1980NE04      Phys.Rev. C22, 690 (1980)

B.M.K.Nefkens, O.R.Sander, G.D.L.Webster, D.I.Sober

Proton-Proton Bremsstrahlung at Tp=730 MeV with Photon Energies up to 300 MeV

NUCLEAR REACTIONS 1H(p, p), E=730 MeV; measured σ(θ, bremsstrahlung), γp-coin for scattered, recoil protons. Soft photon, intermediate isobar state calculations.

doi: 10.1103/PhysRevC.22.690
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1979NE03      Phys.Rev. C19, 877 (1979)

B.M.K.Nefkens, O.R.Sander, D.I.Sober, H.W.Fearing

Differential Cross Section for Proton-Proton Bremsstrahlung at 1.38 GeV/c

NUCLEAR REACTIONS 1H(p, γ), E=730 MeV; measured σ(θ, Eγ). Compared with soft photon calculations.

doi: 10.1103/PhysRevC.19.877
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1966NE07      Nucl.Phys. 88, 523(1966)

B.M.K.Nefkens, D.C.Sutton, M.N.Thompson

Photoproduction and β-Decay of 8He

RADIOACTIVITY 8He[from 11B(γ, 3p)]; measured T1/2, Eγ, βγ-coin. 11B(γ, 3p), E < 250 MeV; measured σ. Natural, enriched 10B target.

doi: 10.1016/0029-5582(66)90411-1
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1964NE02      Phys.Rev. 133, B17 (1964)

B.M.K.Nefkens, G.Moscati

Search for a Long-Lived H4

NUCLEAR STRUCTURE 7Li; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRev.133.B17
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1963NE02      Phys.Rev.Letters 10, 55 (1963)

B.M.K.Nefkens

New β- Activity Induced by Photon Bombardment of Lithium

NUCLEAR STRUCTURE 7Li, 5H; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRevLett.10.55
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1963NE06      Bull.Am.Phys.Soc. 8, No.4, 291, A13 (1963)

B.M.K.Nefkens

β Activities Induced by Photon Bombardment of Light Elements

NUCLEAR STRUCTURE 16O, 14N, 13C, 11B; measured not abstracted; deduced nuclear properties.


1963NE07      Phys.Rev.Letters 10, 243 (1963)

B.M.K.Nefkens

New β- Activities Induced by the Photon Bombardment of Boron11

NUCLEAR STRUCTURE 11B; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRevLett.10.243
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1963NE08      Priv.Comm. (August 1963)

B.M.K.Nefkens, G.Moscati

Search for a Long Lived H4

NUCLEAR STRUCTURE 4H; measured not abstracted; deduced nuclear properties.


1962NE14      Bull.Am.Phys.Soc. 7, No.8, 550, T6 (1962)

B.M.K.Nefkens

Measurement of the Reaction Be9(γ, p)Li8 and C13(γ, p)B12 up to 320 MeV

NUCLEAR STRUCTURE 9Be, 13C; measured not abstracted; deduced nuclear properties.


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